i pulled mine off to do the headstud retorque and i hit them with a wire wheel to clean them up to repaint and they looked like stainless so it through the mothers ball on em and they shined up like stainless. look good right now have been lookin good for a few days now with no sighns of rust forming or anything. so just wondering are they stainless or somthin else? Thank you to whoever answers this for me. Thanks.